Review on 🌬️ EVAP Evaporative Emissions Vacuum Solenoid Switching Valve - 90910-12100, 25860-74050 10033: Enhanced Performance for Efficient Emissions Control by John Huskisson

This VSV fixed my P0401 EGR code. My only complaint is that the car's electrical connector had to be pressed fairly hard to connect and never felt fully inserted or "clicked" when connecting. But for the price and the fact that the code has been fixed I think it's great. This trouble code can be difficult to diagnose, turns out the OEM valve often fails (like mine does) when the car is hot. Testing each of the three main EGR components individually (EGR valve, modulator and VSV) showed that they were all fine. I replaced the VSV as my research showed that of the three parts it was the most prone to failure and would only fail when hot. Of course it was the same for me and no more code!